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(No Model.) V v 2 Sheets'--Sheet 1. L.FRO'TSO'HER. APPARATUSYFOR DYEING,8:0,

- No. 552,638. Patented Jan. 7, 1896.

ANDREW BYGIANAM,PllalO-UYIIQWASIHMETDILRO N Model.) 2 Sheets Sheet :2.L; PROTSGHER. APPARATUSPOR DYEING, 6w.

N0.55Z,638. Patented Ja,n.7',1896.

loooo'oooooooooczyoo I 'oooooooooooooo o AN DREW B.GRAHAM.FHOTO'LI'MQWASHINGTDN D C NirED STATES ATEN'T OFFICE.

LUDOLF FROTSCIIER, OF ZITTAU, GERMANY.

APPARATUS FOR DYEING, 84C.

SPECIFICATION forming part of Letters Patent No. 552,638, dated January7, 1896.

Application filed February 28, 1895. Serial No. 540,120. (No model.)Patented in Germany August 9, 1893, No. 74,984=,- in Austria March 81,1894, No. 58,754, and in Hungary March 31,1894, No. 94,751.

To all whom it may concern:

a Be it known that I, LUDOLF FRoTsoHnR, a subject of the King of Saxony,and a resident of the city of Zittau, in the Kingdom of Saxony, Germany,have invented certain new and useful Apparatus for the Treatment of Spunor WVoven Fibrous Materials with Dyeing, WVashing, Bleaching,Mordanting, and other Liquids or Solutions, (for which I have obtained apatent in Germany No. 74,934, dated August 9, 1893; in Austria No.58,754, dated March 31, 1894., and in Hungary No. 94,7 51, datedMarch31, 1894;) and I do hereby declare that the following is a full,clear, and

exact description of the invention, which will enable others skilled inthe art to which it appertains to make and use the same.

My invention relates to an apparatus for the treatment of spun or wovenfibrous materials with dyeing, washing, bleaching, mordanting, and otherliquids or solutions; and the object of my invention is, first, toprovide means for forcing ordrawing liquids, atmospheric air, or steam,as maybe required, through the fibrous material by placing a liquidcontainer in communication through pipes either with a vacuum-formingapparatus, or a compressed air-vessel, or a steamgenerator; secondly, toperform the dyeing process in such a way that the material undertreatment is dyed equably throughout, which end is obtained by forcingand drawing through the material the dyeing liquid in a state of equalstrength or concentration, not only from the outside thereof inward, butalso in the contrary direction from the inside thereof outward; thirdly,to treat the fibrous material with different liquids or so lutions oneafter another by drawing firstone liquid from a trough or tank throughthe material into theliquid-container and discharging it and thendrawing another liquid from another trough or vessel into theliquid-container, from which said liquid isforced through the materialinto the first-mentioned trough or tank.

I attain the above object by means of the apparatus shown in theaccompanying drawings, in which t Figure 1 is a part sectionalfrontelevation thereof Fig. 2, a part sectional side elevation. Fig. 3 is adetail view, on an enlarged scale, showing the manner in whichcop-spindles may be fixed on a material-carrier5 and Fig. 4, a detailview, on an enlarged scale, of a material-carrier with woven goods woundthereon.

d is a liquid or solution container which is in connection by a valve onand pipe m with a vacuum apparatus 1), and by a valve 12 and pipe n witha compressed-air reservoir (compressor) o.

a is an air-pump 6, Fig. 2, a vessel for supplying through pipe t' andvalve 8 auxiliary or additional liquid to the liquid-container d; 0, asteam-pipe fitted with a valve 0.

f is an open trough or tank.

g is a hollow cylinder, which is suspended in the trough f and servesfor the reception of the goods to be treated. Said cylinder, which ismounted so as to be readily removable, consists, according to the natureof the goods to be treated, of a perforated hollow Warp-beam, Fig. 4,upon which all kinds of spun or woven goods may be wound, or of a pipein which perforated hollow spindles for the reception ofcop-bobbins,Fig. 3,are so fixed that the interior of the spindles is incommunicationwith the inside of the pipe 9. The inside of thematerial-carrier is in communication with the liquid-container atthrough stuffing-box j ointed-pipe connections 1).

h are disks mounted upon the ends of the material-carrier g and servingas wheels for moving the latter to and from the trough, and also protectthe cop-spindles from injury when this movement is being eifected.

In commencing operations the materialcarrier 9, withthe goods to betreated upon it, is placed in the dotted-line position g, Fig. ,2. Theair is withdrawn from it by opening the valvesm and q, and then, afterclosing valve on, steamed through by opening valve in a pipe 70, whichconnects the liquid-container d with a steam-generator, the steampassing through the container cl, pipes 19, and the material-carrier.The latter is then lowered upon its stuffing-box joints 1) into thetrough f and charged with a liquid or solution while the container clcontains air only. The valve min the pipe m leading to the vacuumapparatus is then opened and the air withdrawn from the container d,pipes 19, and carrier in consequence of which liquid is drawn from thetrough through the mate rial to the carrier and thence through thejointed pipes 19 into the container d. In order to force the liquid backagain into the trough f valve on is closed, and according as the'processis to be a cold or a hot one either valve 11 in the pipe leading to thecompressor 6 is opened to admit compressed air, or valve 76 in the pipeleading to the steam-generator opened to admit steam, so that the liquidis driven from the container (Z and forced through the material undertreatment in a contrary direction-that is, from the inside to theoutside. This operation may be repeated several times until the materialhas been sufficiently treated with the liquid. In the use, for instance,of a dyeing liquid or solution the material does not in the justdescribed process take up the die equably throughout, as in thesuction of the dyeing liquid through the material to the container d theouter portion of the fibers or threads first takes up the dye-stuff, andtherefore the inner portion is dyed a lighter color, and when the dyeingliquid is forced back again it is not of sufficient strength orconcentration for dyeing purposes. In order to avoid this disadvantageand to be able to dye the material equably throughout an auxiliaryliquid or solution is supplied to the vessel e which is in connectionwith the c011- tainer d, and when an addition of fresh dyeing liquid isconsidered to be necessary the valves m and s are opened, whereupon theauxiliary liquid is drawn from the vessel 6 into the container cl, whereby the action of steam supplied through pipe 0 it is intimately mixedwith the previously-used dyeing liquid present therein. The liquid thusstrengthened or resaturated is, in the manner above described, forcedback again through the material into the trough f, the inner portion ofthe goods or fibers then being the first to take up the dye. After thedyestuff has been drawn and forced back several times in this way thematerial will be found to be dyed regularly throughout. Thematerialcarrier g is then raised from the trough f by turning it withthe pipe connections on the stalling-box joints 1) into the position g,and the material thereon may be at once, for the purpose of drying oroxidizing it, subjected to a vacuum or to steam or atmospheric airpressure, as hereinbefore described.

Therefore in using this apparatus saturated dyeing liquid is first drawnthrough the goods from the outside to the inside and then again alsosaturated dyeing liquid forced through the goods from the inside to theoutside, so that in the latter case the dye comes in contact with theinner portion of the same, which in the dyeing process is a veryimportant advantage. Further by means of the apparatus the material maybe treated with two different liquids at one operation. The process isthen as follows: The carrier g, with the material to be treated upon it,is lowered into the trough f, and then, after opening the valve q, thecontainer (1, by opening valve m, placed in communication with vacuumapparatus b, whereby the air is exhausted from the container d and thepipe connections 13 and liquid drawn from the trough f through thematerial from the outside thereof into the container d. When thematerial has been sufficiently treated in this way, valve 1 is closedand the liquid discharged from the container cl past valve i into asuitable vessel placed underneath. The second liquid or solution isthen, after opening the valves or and s, drawn by suction or vacuum fromthe vessel 2 into the container (Z, and this latter then placed incommunication with the compressor or with the steam-generator either byopening valve a or valve 70, as the case may be, whereby the liquid inthe container dis, after opening valve q and closing valve i, forced bycompressed air or by steam through the pipe connections p, the carrierg, and from the inside to the outside of the material into the trough f.In like manner a different kind of liquid,

a tannic-acid solution, for instance, may be supplied to the trough f,drawn through the material into the container d and dischargedtherefrom, then by means of a vacuum the container supplied from vesselc with a mordanting liquid to be forced through the material to thetrough f, so that the material may be treated with two differentliquids, one immediately after the other, the one being drawn from f tod and the other forced from cl to f.

What I claim as my invention, and desire to secure by Letters Patent, is

1. An apparatus for the treatment of spun or woven fibrous materialswith liquids or solutions, comprising a perforated hollow carrier g uponwhich the goods to be treated are wound or placed, said carrier beingreadily raised from, and lowered into a trough f by means of jointedpipe connections 19; and a liquid container d which is connected withthe carrier 9 through said pipe connections, with a vacuum apparatus 1)through pipe on and valve m, with a compressed air reservoir 0 throughpipe 41 and valve 72 and with pipe 7e and valve adapted to connect witha steam supply, for the purpose specified, substantially as describedand shown.

2. An apparatus for the treatment of spun or woven fibrous materialswith liquids or solutions, comprising a perforated hollow carrier 9 uponwhich the goods to be treated are wound or placed, said carrier beingreadily raised from, and lowered into a trough f by means of jointedpipe connections p,- a liquid container 61 which is connected with thecarrier 9 through said pipe connections, with a vacuum apparatus Z;through pipe on and valve 172, with a compressed air reservoir 0 throughpipe n and valve or and with pipe 70' and valve 7c adapted to connectwith a steam tion in the presence of two subscribing Witszupply; and inconnection With the container nesses. c a vessel 2 adapted to receive anadditional or auxiliary liquid or solution or a different FROTSCHER' 5liquid or solution, for the purpose specified WVitnesses:

substantially as described and shown. GEORG KEiCHER, In testimonywhereof I sign this specifica- GEORG WAMLIG.

